C++ Program: Association in class Example :Write a code to associate Two class

 

The association is in a relationship between two classes. In this type of relationship, both classes know about the connection.

Following Example :

• Make two-class Birthday and Person
• Birthday class  object inside person class

	#include<iostream>
	#include<string>
	using namespace std;
	class Birthday // Date class
	{
	private:
	int day;int month; int year;
	public:
	Birthday(int d,int m,int y)// constructor
	{
	day=d;
	month=m;
	year=y;
	}
	Birthday(){}//default constructor
	void printD()
	{
	cout<<day<<"."<<month<<"."<<year<<endl;
	}
	};
	class Person //Person class contain name
	{
	private:
	string name;
	Birthday DOB;
	public:
	Person(string n,Birthday b)
	{
	name=n;
	DOB=b;
	}
	void print()
	{
	cout<<name<<" was born on :";
	DOB.printD();//callig Birthday class function
	}
	};
	int main()
	{
	Birthday d(24,04,1992);
	Person s("Summer",d);
	s.print();
	return 0;
	}

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Summer was born on :24.4.1992